KR20150014120A - Bolt loosing preventing structure of wear ring for pump - Google Patents

Bolt loosing preventing structure of wear ring for pump Download PDF

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Publication number
KR20150014120A
KR20150014120A KR1020130089371A KR20130089371A KR20150014120A KR 20150014120 A KR20150014120 A KR 20150014120A KR 1020130089371 A KR1020130089371 A KR 1020130089371A KR 20130089371 A KR20130089371 A KR 20130089371A KR 20150014120 A KR20150014120 A KR 20150014120A
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KR
South Korea
Prior art keywords
bolt
fastening
ring
wear ring
pump
Prior art date
Application number
KR1020130089371A
Other languages
Korean (ko)
Inventor
하진수
김발영
이상구
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020130089371A priority Critical patent/KR20150014120A/en
Publication of KR20150014120A publication Critical patent/KR20150014120A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
    • F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a bolt loosening preventing structure of a wear ring for a pump, which is provided with a wear ring (10) fastened and fixed to a casing (5) of a pump by fastening bolts (7a) And a plurality of bolt fastening holes 11 for fastening the fastening bolts 7 to the bolt fastening holes 11. The fastening bolts 7 are fastened through the bolt fastening holes 11, A seating jaw 12 in which the bolt head 7a of the tightening bolt 7 is seated and a clearance portion 7b for forming a clearance from the bolt head 7a seated on the seating jaw 12 to the outside of the wear ring 10 A plurality of empty space portions 13 corresponding to the plurality of bolt fastening holes 11 are communicated with each other to form a ring shaped concave groove structure, (7a) of a plurality of fastening bolts (7) fastened to the plurality of bolt fastening holes (11) The covering the clamp ring 20 and the clamping ring 20 has a structure including a fixing means for fixing the wear ring (10).
Therefore, the bolt loosening can be basically prevented and the structural reliability can be imparted. Further, the clamping work can be performed quickly and easily, and the workability can be improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bolt loosening preventing structure of a wear ring for a pump,

The present invention relates to a bolt loosening prevention structure for a wear ring for a pump, and more particularly, to a bolt loosening preventing structure for a pump wear ring, wherein a plurality of clearance spaces corresponding to bolt fastening holes are communicated with each other to form a ring- A clamp ring for covering the bolt heads of the plurality of fastening bolts respectively fastened to the plurality of bolt fastening holes and fixing means for fastening the clamp ring to the wear ring are provided so that the bolt loosening can be basically prevented The present invention also relates to a structure for preventing bolt loosening of a wear ring for a pump that can be easily and quickly clamped to improve workability.

Generally, the wear ring assembled inside the casing of the nuclear water main feed pump is fastened and fixed using a plurality of fastening bolts.

For example, as shown in FIGS. 1 and 2, a wear ring 9 is provided on a casing 5 of a pump and fastened by fastening bolts 7, A plurality of bolt fastening holes 9a spaced apart at regular intervals along the ring-shaped rims of the fastening bolts 9 to fasten the fastening bolts 7 are provided. In the vicinity of the bolt fastening holes 9a, 7a of the bolt head 7a of the fastening bolt 7 when the bolt 7 is fastened through the bolt fastening hole 9a and a bolt head 7a seated on the fastening bolt 9b, And a spare space portion 9c for forming a clearance space from the wearer 9 to the outside.

A conventional method for fastening and fixing the wear ring according to this structure is to prevent the fastening bolts 7 from loosening after fastening the fastening bolts 7 through the plurality of bolt fastening holes 9a of the wear ring 9 The bolt head 7a and the free space portion 9c are fixed to the wear ring 9 by performing caulking or tack welding on the bolt head 7a and the free space portion 9c.

Reference numeral 8 denotes a bead formed in a place where tack welding is performed.

However, in the prior art fastening bolt loosening prevention system, when strong cavitation or swirling fluid is generated in these fastening bolts, the tightening is released and the fastening bolts are loosened. Such bolt loosening affects the pump operation, And the entire power generation of the power plant was adversely affected.

Korea Patent Publication No. 2009-0014940

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above problems, and it is an object of the present invention to provide a bolt fastening structure, in which a plurality of clearance spaces corresponding to a plurality of bolt fastening holes are communicated with each other, The clamping ring for covering the bolt heads of the plurality of fastening bolts respectively fastened to the wear ring and the fastening means for fastening the clamp ring to the wear ring are provided so that the bolt loosening can be basically prevented, And it is an object of the present invention to provide a bolt loosening preventing structure for a wear ring for a pump that can be rapidly and simply clamped to improve workability.

In order to achieve the above object, a bolting loosening preventing structure of a wear ring for a pump according to the present invention is characterized in that a wear ring is fixed to a casing of a pump by fastening bolts, and the fastening bolt is fastened And the bolt head of the fastening bolt is seated when the fastening bolt is fastened to the fastening bolt through the bolt fastening hole in the vicinity of the bolt fastening hole, A plurality of clearance spaces corresponding to the plurality of bolt tightening holes are formed so as to communicate with each other to form a ring shaped concave groove structure and are arranged in the clearance space portion, A clamp ring covering the bolt heads of the plurality of fastening bolts respectively fastened to the plurality of bolt fastening holes, Including fixing means for fixing the ring with the wear ring is characterized in that configured.

In the bolt loosening preventing structure of the wear ring for a pump according to the embodiment of the present invention, the fastening means is formed with concave grooves on the outer circumferential surface of the clamp ring and the inner circumferential surface of the spare space portion of the wear ring, And the clamping wire may be configured to include the clamping wires inserted through the insertion holes formed by mutually joining the concave grooves so that these concave grooves engage with each other.

Further, in the bolt loosening preventing structure of the wearer for a pump according to an embodiment of the present invention, each of the recessed grooves may have a structure in which a garden insertion hole is formed facing each other as a semicircular concave groove structure.

Further, in the bolt loosening preventing structure of the wear ring for a pump according to an embodiment of the present invention, the respective recessed grooves may be formed over the entire circumferential surface of the clearance portion of the wear ring corresponding to the outer circumferential surface of the clamp ring .

Further, in the bolt loosening preventing structure of the wear ring for a pump according to an embodiment of the present invention, the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the clamp ring It may be further provided with a guide hole penetrated therethrough.

As described above, in the bolt loosening preventing structure of the wearable member for a pump of the present invention, the plurality of clearance spaces corresponding to the plurality of bolt tightening holes communicate with each other to form a ring-shaped concave groove structure, The clamp ring for covering the bolt heads of the plurality of fastening bolts respectively fastened to the bolt fastening holes of the bolts and the fastening means for fastening the clamp ring to the wear ring are provided so that the bolt fastening can be basically prevented It is possible to provide the structural reliability, and the clamping operation can be performed quickly and easily, so that the workability can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a bolt loosening preventing structure of a conventional wear wring for a pump. FIG.
Fig. 2 is a sectional view showing a main portion showing a bolt loosening preventing structure of a wear ring for a pump of the prior art.
3 is a perspective view showing a bolt loosening preventing structure of a wear ring for a pump according to an embodiment of the present invention.
FIG. 4 is an exploded perspective view showing a bolt loosening preventing structure of a wear ring for a pump according to an embodiment of the present invention.
FIG. 5 is a sectional view showing a main part of a bolt loosening preventing structure of a wear ring for a pump according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

3 to 5, the bolt loosening preventing structure of the wearer for a pump according to the embodiment of the present invention is provided with a wear ring 10 which is fastened and fixed to the casing 5 of the pump with a fastening bolt 7a And a plurality of bolt fastening holes 11 disposed along the ring-like rim of the wear ring 10 to fasten the fastening bolts 7 and fastening bolts 7 has a bolt head 7a on which the bolt head 7a of the bolt 7 is seated when the bolt 7 is fastened through the bolt fastening hole 11 and a bolt head 7a which is seated on the fastening bolt 7, A plurality of empty spaces 13 corresponding to the plurality of bolt fastening holes 11 are communicated with each other to form a ring shape Is formed in the recessed groove structure, and is disposed in the clearance space portion (13) and fastened to the plurality of bolt fastening holes (11) It is configured to include a fixing means for fixing the bolt to the clamp ring of overwriting head (7a), (20) and the clamping ring 20 of the plurality of fastening bolts 7 wear ring (10).

The fixing means includes concave grooves 21 and 13a formed on the outer circumferential surface of the clamp ring 20 and an inner circumferential surface of the spare space portion 13 of the wear ring 10 corresponding thereto, And 13a are inserted through insertion holes which are joined to each other, so that these recessed grooves 21 and 13a are engaged with each other.

Each of the concave grooves 21 and 13a has a semicircular concave groove structure so as to face each other and form a garden insertion hole.

The concave grooves 21 and 13a are formed on the outer circumferential surface of the clamp ring 20 and the entire inner circumferential surface of the spare space portion 13 of the wear ring 10 corresponding thereto.

The clamp ring 20 is formed on one side of the outer surface of the clamp ring 20 so as to guide the clamping wire 30 to the concave grooves 21 and 13a, A ball 22 is provided.

In the clamping process of the fastening bolt through the bolt loosening preventing structure of the wearer for a pump, which is one embodiment of the present invention according to the present invention, first, the fastening bolts 7 are fastened through the bolt fastening holes 11 of the wear ring 10 And the clamp ring 20 is disposed in the clearance space portion 13 above the bolt head 7a of the fastening bolts 7.

Then, the concave grooves 21 and 13a of the clamp ring 20 and the free space portion 13 are opposed to each other to form a garden structure.

In this state, when the clamping wire 30 is inserted through the outer guide hole 22 of the clamp ring 20, the clamping wire 30 is continuously inserted along the guide hole 22, The clamp ring 20 can be fixed to the clearance space 13 while being engaged with the respective recessed grooves 21 and 13a as a result, .

When the clamp ring 20 is to be released, the clamp ring 30 is pulled out from the outside by a separate tool or the like, and the clamp ring 20 can be unlocked by pulling the clamp ring 20 outward.

 As described above, in the bolt loosening preventing structure of the wearer for a pump according to an embodiment of the present invention, the plurality of clearance spaces corresponding to the plurality of bolt tightening holes are communicated with each other to form a ring- A clamp ring for covering the bolt heads of the plurality of fastening bolts respectively fastened to the plurality of bolt fastening holes and fixing means for fastening the clamp ring to the wear ring are provided so that the bolt loosening is basically prevented It is possible to provide the structural reliability and the clamping work can be performed quickly and easily, so that the workability can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It should be understood that all of the techniques that can be easily changed and used by those skilled in the art are included in the technical scope of the present invention.

DESCRIPTION OF REFERENCE NUMERALS
5: Casing 7: fastening bolt
7a: Bolt head 8: Bead
9: Wear ring 9a: Bolt tightening hole
9b: seating jaw portion 9c: free space portion
10: Wear ring 11: Bolt tightening hole
12: seating jaw portion 13: free space portion
13a: concave groove 20: clamp ring
21: concave groove 22: guide ball
30: Clamping wire

Claims (5)

A wear ring to be fastened and fixed to the casing of the pump with a fastening bolt is provided,
And a plurality of bolt fastening holes disposed along the ring-shaped rim of the wear ring to fasten the fastening bolts,
And a bolt head of the fastening bolt is seated when the fastening bolt is fastened to the bolt fastening hole adjacently to the bolt fastening hole through the bolt fastening hole and a bolt head which is seated on the fastening fastening part forms a free space to the outside of the wear ring A spare space is provided,
A plurality of clearance spaces corresponding to the plurality of bolt fastening holes communicate with each other to form a ring-shaped concave groove structure,
A clamp ring disposed in the clearance space to cover bolt heads of a plurality of fastening bolts respectively fastened to the plurality of bolt fastening holes; And
Fixing means for fixing the clamp ring to the wear ring;
And a bolt loosening preventing structure for a wear ring for a pump. The method according to claim 1,
Wherein,
A concave groove is formed on the outer circumferential surface of the clamp ring and an inner circumferential surface of the spare space portion of the wear ring corresponding thereto,
And a clamping wire inserted through the insertion hole formed by the concave grooves to allow the concave grooves to engage with each other. 3. The method of claim 2,
Wherein each of the recessed grooves has a structure in which a garden insertion hole is formed to face each other as a semicircular recessed groove structure. The method of claim 3,
Wherein each of the recessed grooves is formed over the entire circumferential surface of the clearance portion of the wear ring and the outer circumferential surface of the clamp ring. 5. The method of claim 4,
And a guide hole penetrating from one side of the outer side surface to a concave groove on the outer circumferential surface so that the clamping wire is guided by the concave grooves on one side of the outer surface of the clamp ring.


KR1020130089371A 2013-07-29 2013-07-29 Bolt loosing preventing structure of wear ring for pump KR20150014120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130089371A KR20150014120A (en) 2013-07-29 2013-07-29 Bolt loosing preventing structure of wear ring for pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130089371A KR20150014120A (en) 2013-07-29 2013-07-29 Bolt loosing preventing structure of wear ring for pump

Publications (1)

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KR20150014120A true KR20150014120A (en) 2015-02-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160116655A (en) * 2015-03-31 2016-10-10 현대중공업 주식회사 Locking Apparatus for Wearing Anti-Unlocking of Centrifugal Pump
CN106224353A (en) * 2016-08-30 2016-12-14 无锡太昌精密机械有限公司 A kind of multifunctional nut cap
WO2020178756A1 (en) * 2019-03-05 2020-09-10 Petrolvalves S.P.A. Flange, disc and valve comprising the flange
KR200497785Y1 (en) * 2022-08-24 2024-02-29 서원콤프레샤주식회사 Condenser protective cover of motor for air compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160116655A (en) * 2015-03-31 2016-10-10 현대중공업 주식회사 Locking Apparatus for Wearing Anti-Unlocking of Centrifugal Pump
CN106224353A (en) * 2016-08-30 2016-12-14 无锡太昌精密机械有限公司 A kind of multifunctional nut cap
WO2020178756A1 (en) * 2019-03-05 2020-09-10 Petrolvalves S.P.A. Flange, disc and valve comprising the flange
KR200497785Y1 (en) * 2022-08-24 2024-02-29 서원콤프레샤주식회사 Condenser protective cover of motor for air compressor

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